513042231 has 8 divisors (see below), whose sum is σ = 736676080. Its totient is φ = 315718272.

The previous prime is 513042227. The next prime is 513042241. The reversal of 513042231 is 132240315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513042231 - 2² = 513042227 is a prime.

It is a super-2 number, since 2×513042231² = 526424661578914722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513042198 and 513042207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513042241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6577426 + ... + 6577503.

It is an arithmetic number, because the mean of its divisors is an integer number (92084510).

Almost surely, 2^513042231 is an apocalyptic number.

513042231 is a deficient number, since it is larger than the sum of its proper divisors (223633849).

513042231 is a wasteful number, since it uses less digits than its factorization.

513042231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154945.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 513042231 is about 22650.4355587260. The cubic root of 513042231 is about 800.5424607331.

Adding to 513042231 its reverse (132240315), we get a palindrome (645282546).

It can be divided in two parts, 51304 and 2231, that added together give a palindrome (53535).

The spelling of 513042231 in words is "five hundred thirteen million, forty-two thousand, two hundred thirty-one".